Method of refining iron and steel



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no Drawing. 1 Application filed October 2a, 1920. S eria1-N o.:420, 22 6.

Toallwhomctmay concern:

Be it known that I HENRY THQMAS, a citizen of the United tates, and a resident of Cleveland, county of Cuyahoga, and

5 State of Ohio, have invented a new and use vful Improvement in Methods of Refining;

Iron and SteeLof-Which the. following is a specification, the principle of the inven--* tion being herein explained and the best mode in which'I have contemplated applying that principle, so as to distinguish it from other inventions. I

The present im rovements relate, as indicated, to a metho of refining iron anisteel.

and are particularly directed to an improved method of refining or fluxing'iron andsteel scrap for the purpose of purifying it. To the accom lishmentof the foregoing and related en s, said invention, then, consists of the means hereinafter fully described and particularly ointed out in the claims.

. The followln description sets forth in detail one metho and one roduct exemplifying my invention, such isclosed procedure and product constituting however, but one-- of various applications of the principle of' '40 the preferred proportions are one part-of sand, one part of borax, and one-half atil-t each of lass, lime and fiuorspar. amount 0 flux necessary to refine a/given weight of scrap metal will vary with the serves to keep the metal fromlthe furnacev and to prevent stickingwhen the-molten I lime, borax a'ncl fluorspar.

and fluorspar in about equal proportions tocharacter of metal and, iflt he metal conic tains any-great amountof impurities, about one'pound offthe fluxing composition.- will be required to every hundred pounds of metal. The sand and-fluorspar act to; hold the entiremass together, .while' -the lime.

m'assis poured. The flux having been in-- troduced into. the furnace and the scra pourediin 1 on top of it,- the; entire mass is brought to a molten conditiox'n'by which time 'the fiux'has worked up throughthe molten a maSscarryi'ng the impurities "with it' and forming a slag 0n the surface of the metal which may be skimmed ofi'afte'r whichth'e molten metal canibe pouredinto molds. I

have found that this'improved 'fluxing coinosition serves to place scrap i-rQn and steel 1n practically asjpure and usable condition as it was originally.

Other forms may be employed embodying y the features of my-invention instead of the one here explained, change being made'in the form or construction, provided the elements stated' by any of the following claims'or the equivalent of such stated elements be em ployecl, whether produced by my preferred method or by others embodying steps equiv-- alent to those stated in the following claims.

I thereforeparticularly point 'out and dis- 75 tinctly claim as my invent1 on:

1. In a, method of refiningiron andsteel, the step which consists injfusing the iron and steel with a flux consisting of glass,

t so 2 In a method of refining iron and steel, the'step which consists in fusing the iron and steel witha flux consisting of glass, lime 'f gather with borax. I V v this23 day of October,

. HENRY THOMAS. 1

- s5 Signed by me, 

